Playboy honcho Hugh Hefner tied the knot on New Year's Eve, as expected.

Hef, 86, and Harris, 26, got married at the Playboy mansion.

"Today is the day I become Mrs. Hugh Hefner. Feeling very happy, lucky, and blessed," Harris, who was Playboy's Miss December 2009, tweeted earlier in the day. She already has changed her name on Twitter to "Crystal Hefner."

She also tweeted photos of the flowers and wedding setup with messages including "The mansion is looking beautiful."

And finally, she shared a shot of her "pale pink 'mermaid' dress." As well as a shot of the ceremony. Hefner changed out of his silk pajamas long enough to put on a tuxedo.

Hefner had been set to wed in June 2011, but she ditched him just days before they were to be married.

Lifetime had planned to air a special Marrying Hef, which instead became Runaway Bride.

"Happy New Year from Mr. and Mrs. Hugh Hefner," wrote Hef on Twitter, sharing a shot of himself in purple silk jammies. His bride still had on her wedding gown.